The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2008
Filed:
Oct. 22, 2003
Howard E. Rhodes, Boise, ID (US);
Richard A. Mauritzson, Boise, ID (US);
Inna Patrick, Boise, ID (US);
Howard E. Rhodes, Boise, ID (US);
Richard A. Mauritzson, Boise, ID (US);
Inna Patrick, Boise, ID (US);
Micron Technology, Inc., Boise, ID (US);
Abstract
An image sensing circuit and method is disclosed, wherein a photodiode is formed in a substrate through a series of angled implants. The photodiode is formed by a first, second and third implant, wherein at least one of the implants are angled so as to allow the resulting photodiode to extend out beneath an adjoining gate. Under an alternate embodiment, a fourth implant is added, under an increased implant angle, in the region of the second implant. The resulting photodiode structure substantially reduces or eliminates transfer gate subthreshold leakage.